package com.gyyweishang.mapper;

import com.gyyweishang.pojo.Dept;
import org.apache.ibatis.annotations.*;

import java.util.List;

@Mapper
public interface DeptMapper {
    /*
     * 查询所有部门
     */
    //方式一：使用@Results注解
//    @Results({
//            @Result(column = "create_time", property = "createTime"),
//            @Result(column = "update_time", property = "updateTime")
//    })
    //方式二 起别名
//    @Select("select id, name, create_time createTime, update_time updateTime from dept order by update_time desc")
    //方式三 开启驼峰命名自动映射
    @Select("select id, name, create_time, update_time from dept order by update_time desc")
    List<Dept> findAll();

    @Delete("delete from dept where id = ${id}")
    void deleteById(Integer id);

    @Insert("insert into dept(name, create_time, update_time) values(#{name}, #{createTime}, #{updateTime})")
    void insert(Dept dept);

    @Select("select id, name, create_time, update_time from dept where id = #{id}")
    Dept searchById(Integer id);

    @Update("update dept set name = #{name}, update_time = #{updateTime} where id = #{id}")
    void update(Dept dept);
}
